Mechanical dough-kneading device.



R. RAMBEAUD. MECHANICAL DOUGH KNBADING DEVICE. v APPLICATION FILED 00T` 8, 1910. 1,049,600. Patennedqan. 7, 1913.

. 4 SHETS-SHBET l.

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R.- RAMBEAUD.

MECHANICAL DOUGH KNBADING DEVICE. APPLIOATION FILED 001.8, 1910.

1,049,600. Y Patented .1111.731913 4 SHEETS-SHEET 2.

COLUMBIA PLANOGRAPH co.. WASHINGTON, D. c.

R. RAMBEAUD.

MEGHANIGAL DOUGH KNBADING DEVICE.'

APPLICATION FILED 00T. 8, 1910.

Patented Jan@ '7, 1913.

4 SHEETS-SHEET si.

COLUMBIA PLANOGRAPH C0.V WASHINGTON. D, c4

l R. RAMBEAUD.y MECHANICAL DoUGH KNBADING DEVICE.

APPLIGATION FILED 00T. 8, 1910.

Patented J an. 7, 1913.

Y 4 SHEETS-SHEET 4.

COLUMBIA PLAN`0GRAPH CO.. WASHINGTON, c.

i To cZZ whom t concern.

REN fnemnnunior PARTHNAY,1FRANCE. f

, Beit known'that "I, REN RAMBEAUD, a

citizen of the FrenchRepublic', ,-andfresident` of 2 Rue Romarin, Parthenay, DeuXSvres, France, have lnventedcertaln new rand use- `ful Improvements in Mechanical i Dough- Kneading Devices.y

This invention relatesto a Vdevice for mechanically lmeadingfdough in which the 1c lmeading device `proper `is mounted on Va shaft carried by a `frame yworlrin sucha manner that the kneading deviceQmayA be y tilted into a trough, positioned vin front a rotary manner onfavertical shaft carried of the framework'and outfromthe lsaid trough, the trough itself being mountedjin,

i by a carriage.

" The advantages yrealized `by present arrangement are that lthe c stirring t device maybe liftedV out from'the trough, and that theflattermay be removedgso'that the trough employed, as well *f asthe lmeading device, maybe replaced bydevices of the same'kmd but not lled with dough. It will bev GiPsilyunderstood that the kneading operation' of the finished dough is thereforenotinterrupted.y

The accompanying drawings showf Y sev- Y eral forms of` embodiment of .thelneading i ,apparatus and infthese .1drawv1ngs; Figure 1 shows a 4.verticali axial section through the kneading apparatus complete; Fig.` 211s a section of the framework on line'A-A of Fig. 1; Fig. k3 shows atop plan view of the carrying Vframe of the kneading device,Fig. 4 is a similar view of the carriage supporting the trough; Figs. 5 and 6 show forms yof embodiment of the spiral kneading device ;Q Fig. 7 shows ythe kneading apparatus provided laccordingtofthis form of embodiment with a` scraping member, this figure' showingr the kapparatus partlyy iii-section,

partly in elevation.; Fig. 8 isthe corresponding top .plan view; FigIfQ finallyv shows .1al

' Hwith one'or twofspirallfthreads, (Fig'gsl Y andy 5.!) The `upper thread 'of each -spiral=f" carries a d blade 24 ywhich projects toward.,

base2 by means of screws,'-is provided in'its upper part vwith bearings 2', adapted to contain the trunnion, of ascasing 4, which isy adapted toreceive a worm gearyand -6=- MEcHANrcAL. noUGH-KNEAISING DEVICE., 7

The latter causes the kneading#devicel *"rto rotate. f

d d d y l Patented Jan.`7,f`1z913.flg v fn'pplicatiqn nieuyoetob'er 8,1910. serial No. 586,041. l

Thekneading device is secured'iinsuchaf yInanneron the free end of a shaft 6', of the rworm yWheel 6 that it maybe easily ,takenj oifand replaced. The worm ,wheeljj'fis driven by, a worm 5, which is keyed on a; shaft18, which passes through the two trunnions 3, of the casing 4, and 'carries on .oneof its yends a loose and a fast pulley 9 and 10, c respectively. l s

Secured to oneof the trunnions 3, `and this preferably to that one which is oppositeftoy the belt pulleys 9 and v10, isa wormlwheel' 11,.'with a worm12, which is supportedin an arm13 'ofy the frame l-andis adapted tof berotatedby a hand wheel 141. The r,ota,

tionof4this handfwheel 14, in one crit/he,y other direction, causes fthe casing r4 to oscilf", late inthebearings 2f`sothatthe kneading` device? is either tilted `1 into or outlfrom* the trough.-

New in. Order a prevent," fearing uref' kneading operation, thest'irring device from i lowery position, d engagesfa corresponding The `movable portion ofthe lineadingap;k

into they frame.

Vbeing raised or from being forced yaside' byv kthe resistance offeredby the dough, the'casK-, .ing14 provided with"`an egtensionfcl which,when thestirring device assumesa paratus includesla carriagetlS which.,isfpro-gy videdwith a Yslot19, andthe carriage Vmay' be temporarily connected with..the` frame 1' by a screw 2() passing'through,saidf'slotv The* trough f23,;,is'1sup?,I

IVA

ported by means;V offa lcalllccaring'y 22,.on

the carriage 18., Aswillbereadily seen,the`

trough may be rotated Qifanecessaryffon Stud 21.*. Y ,y .i

The stirring devicfmay be pianta,

accordingto the 'rwcrkwhich it hasfftoV do,

thesecond thread.l The specialmanner ily seen from inspection of the drawings. The blades are arranged in such a manner that .during the work of the apparatus they scrape along the inner wall of the trough 23.

The stirring device may be constructed in the manner shown by Fig. 6; that is to say, it may be provided with two spiral threads which extend on a certain portion of the length of the device, and terminates at a distance from the connecting sleeve for the driving shaft, a distance which is about equal to the height of a thread. Owing to this arrangement, one may employ two parallel arms 2A which are arranged opposite each other.

The function of this device is as follows: After the trough has been filled with flour, liquid and other additions, the apparatus is rotated by causing the belt to run on the pulley 10. As will be readily' seen, the shaft 8, and the worm 5, rotate the worm wheel 6, keyed on the shaft 6. The stirring devices may be changed so as to adapt the apparatus to suit the nature of the dough.

The kneading device is caused to rotate after having been tilted into the trough.4

The inclined blades 25 convey the dough to the upper part of the kneading device forcing it at the same time toward the upper edge of the trough until it meets with the blades 24. The latter pull the dough laterally and cause it to descend. As -will be readily seen, hand kneading is hereby perfectly imitated and the necessary air is introduced into the dough. As the trough 23 is adapted to rotate all the parts of the dough are successivelyl stirred without any interruption. When the kneading operation is finished, the hand wheel 14 is rotated in such a manner that the kneading device is lifted out from the trough. The worm 12` causes the worm wheel 11 to rotate the trunnions 3. The casing 4 is consequently tilted backward so that the kneading device, as already stated is lifted out of the trough. When it is desired to remove the trough the operator releases the locking device 20. In order to facilitate the change of the trough of the carriage, the front of the frame has a trapezoidal form (Fig. 3). That part of the carriage which engages the front of the frame is formed toaccurately fit the shape of said frame. The cutaway part of the carriage plate simply glides under the nut on the screw 20 so that by simply tightening said nut a rigid connection between the frame and the carriage is obtained.

In the form of embodiment shown by Figs. 7 and 8, the kneading apparatus is provided with a scraper. The casing t is provided with an arm 26, which is preferably secured on the lower surface of the casing. The free end of this arm is provided with a vertical bore and receives a scraping blade 29 which is positioned at a short distance in front of the kneading dev ice, applies itself against the inner surface of the trough, as shown in Fig. 2. The edge which comes into contact with the surface of the trough is preferably knife shaped and is applied with some pressure of the spring 31. The opposite edge is at a certain distance from the inner surface of the trough so'that the dough removed from the said inner surface is conveyed toward the kneading device. Owing to this arrangement, the kneading operation is much more complete, and as t-he scraping device is also secured to the casing 4L it is removed from the trough at the same time as the kneading device.

The dough stirring or kneading device shownby Fig. 9, comprises a shaft 33 to which two cross bars 34 and 35 are secured by means of tenons, which cross bars serve to hold the spiral threads 36 and 37. The

lower cross bar 35 is provided with two` blade supports 38 which are parallel to the shaft 33 and support the lower spiral threads. The blades 38 are sharpened like knives, in the direction of the rotation, and thus are adapted to separate the dough. As the screw threads 36, 37 are not rigidly connected together at their lower ends, the mass of dough may freely pass between them and consequently always renew itself owing to the rotation of the trough. 39 and 40 designate projections provided on the screw threads 36, 37 and which serve to draw out the dough and to aerate it.

I claim: y

l. A kneading apparatus comprising in combination, a supporting structure, a receiver thereon, and a kneading device for said receiver adjustably mounted on said structure and comprising opposing spirally formed blades converging from their upper toward their lower end and provided with scraping arms.

2. A kneading apparatus comprising in combination, a supporting structure, a receiver thereon, and a kneading device projecting into said receiver and comprising opposing spirally formed blades converging from their upper toward their lower ends and provided with downwardly directing scraping arms at their upper ends, substantially as described.

3. A kneading apparatus comprising in combination, a receiver for the material to In testimony whereof I have hereunto set be treated, and a kneading device projectingmy hand in presence of two Witnesses., into said receiver comprising a spiral blade n portion having-its spiral formed to pull the RENE RAMBEAUD. 5 material rupwardly inA said receiver, and Y' blades arranged to dovvnvvardlyv direct such Witnesses: `upwardly .pulled material, substantially as C. KINL,E,

described. L. BOULEAU.

` Copies 0f this patent may be obtained for ve cents each, by addressing the CommissionerA 0f Patents, i 4

Washington, D. C. 

